David Goggins is one of the most extreme endurance athletes on the planet. But he used to be a 300 lb exterminator. Push past your normal stopping point to get compound gains to allow you to accomplish what you once thought was impossible.
Learn more about David at his website https://davidgoggins.com/
Heroic Members can check out the philosophers notes here https://www.heroic.us/pn/cant-hurt-me-david-goggins?fpr=stlsoulforge